J. H. Kim, J. Noh, I. Hwang
May 8, 2013
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0
Influential Citations
63
Citations
Journal
Tetrahedron Letters
Abstract
Abstract A new zinc ion sensor 1-(anthracen-9-yl)- N -(pyridin-2-ylmethyl)- N -(quinolin-2-ylmethyl)methanamine 1 was synthesized by incorporating a dipicolylamine derivative as a binding unit and an anthracene group as a fluorescence signaling unit. The anthracene-based receptor 1 was highly selective for Zn 2+ with a fluorescence enhancement and a remarkable red shift in aqueous solution, whereas this chemosensor showed no response to other metals, especially Cd 2+ ion. The composition of the complex 1 –Zn 2+ turned out 1:1, based on Job’s plot, ESI-mass analysis, and 1 H NMR titration.